[PATCH] D49754: Add -m(no-)spe, and e500 CPU definitions and support to clang

Sat Dec 8 02:18:40 PST 2018

glaubitz added a comment.

In D49754#1323642 <https://reviews.llvm.org/D49754#1323642>, @vit9696 wrote:

> Might the first crash from https://reviews.llvm.org/D49754#1183753 reproduce for you or perhaps you have already bisected to trunk to figure out the changest that fixes it?

Yes, it does on Debian unstable 32-bit PowerPC with the patches against LLVM-7, didn't test LLVM-8:

  root at kapitsa:/srv/llvm# clang-7 -cc1 -triple powerpc-gnu-linux-eabi -emit-obj -target-cpu ppc -target-feature +spe -O2  t.cpp
  t.cpp:23:1: warning: control reaches end of non-void function
  }
  ^
  Stack dump:
  0.      Program arguments: clang-7 -cc1 -triple powerpc-gnu-linux-eabi -emit-obj -target-cpu ppc -target-feature +spe -O2 t.cpp 
  1.      <eof> parser at end of file
  2.      Code generation
  3.      Running pass 'Function Pass Manager' on module 't.cpp'.
  4.      Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on function '@_ZN1c2fnERK1a'
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x40)[0xcc684a4]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0x81886c)[0xcc6886c]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm3sys17RunSignalHandlersEv+0xd8)[0xcc65b68]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0x818a8c)[0xcc68a8c]
  linux-vdso32.so.1(__kernel_sigtramp32+0x0)[0x100424]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0xe157dc)[0xd2657dc]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0xdfdab0)[0xd24dab0]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0xdf7224)[0xd247224]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0xe10014)[0xd260014]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm12SelectionDAG13LegalizeTypesEv+0x244)[0xd265ba4]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm16SelectionDAGISel17CodeGenAndEmitDAGEv+0x238)[0xd36a39c]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm16SelectionDAGISel16SelectBasicBlockENS_14ilist_iteratorINS_12ilist_detail12node_optionsINS_11InstructionELb0ELb0EvEELb0ELb1EEES6_Rb+0x1fc)[0xd36a048]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm16SelectionDAGISel20SelectAllBasicBlocksERKNS_8FunctionE+0x21dc)[0xd368af0]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm16SelectionDAGISel20runOnMachineFunctionERNS_15MachineFunctionE+0x778)[0xd3659cc]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(+0x24a5a00)[0xe8f5a00]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0xcc)[0xcf98948]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x1e8)[0xcdc0e18]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x60)[0xcdc13d4]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x390)[0xcdc1960]
  /usr/lib/powerpc-linux-gnu/libLLVM-7.so.1(_ZN4llvm6legacy11PassManager3runERNS_6ModuleE+0x14)[0xcdc220c]
  clang-7(_ZN5clang17EmitBackendOutputERNS_17DiagnosticsEngineERKNS_19HeaderSearchOptionsERKNS_14CodeGenOptionsERKNS_13TargetOptionsERKNS_11LangOptionsERKN4llvm10DataLayoutEPNSE_6ModuleENS_13BackendActionESt10unique_ptrINSE_17raw_pwrite_streamESt14default_deleteISM_EE+0x32b4)[0x1023f644]
  clang-7[0x1074857c]
  clang-7(_ZN5clang8ParseASTERNS_4SemaEbb+0x2b4)[0x10c3da9c]
  clang-7(_ZN5clang17ASTFrontendAction13ExecuteActionEv+0xac)[0x106a2a84]
  clang-7(_ZN5clang13CodeGenAction13ExecuteActionEv+0x390)[0x107472f4]
  clang-7(_ZN5clang14FrontendAction7ExecuteEv+0x6c)[0x106a2408]
  clang-7(_ZN5clang16CompilerInstance13ExecuteActionERNS_14FrontendActionE+0x638)[0x10659aa4]
  clang-7(_ZN5clang25ExecuteCompilerInvocationEPNS_16CompilerInstanceE+0x748)[0x10743ba0]
  clang-7(_Z8cc1_mainN4llvm8ArrayRefIPKcEES2_Pv+0x6bc)[0x101ee2c4]
  clang-7(main+0x2920)[0x101ec550]
  /lib/powerpc-linux-gnu/libc.so.6(+0x22558)[0xbef2558]
  /lib/powerpc-linux-gnu/libc.so.6(__libc_start_main+0xe8)[0xbef2748]
  Segmentation fault
  root at kapitsa:/srv/llvm#

Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D49754/new/

https://reviews.llvm.org/D49754